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Publication
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| Title of Article |
Capability of sweet sorghum stalks as supporting materials for yeast immobilization to produce ethanol under various fermentation processes |
| Date of Acceptance |
14 November 2014 |
| Journal |
| Title of Journal |
Journal of the Taiwan Institute of Chemical Engineers |
| Standard |
SCOPUS |
| Institute of Journal |
Elsevier |
| ISBN/ISSN |
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| Volume |
49 |
| Issue |
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| Month |
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| Year of Publication |
2015 |
| Page |
79-84 |
| Abstract |
Unpeeled sweet sorghum stalk (SSS) pieces sizing 6 to 20-mm diameter and 6-mm thick were used as carriers for Saccharomyces cerevisiae NP 01 immobilization to produce ethanol. The diluted sweet sorghum juice containing 100 g l-1 of total sugar without nutrient supplementation was found to be a suitable medium for yeast cell immobilization and 18 h incubation time was sufficient for immobilization process on the SSS pieces. In repeated-batch ethanol fermentation from sweet sorghum juice (240 g l-1 of total sugar) at 30 oC, the average ethanol concentration (P), productivity (QP) and yield (YP/S) by the immobilized yeast cells were 93.4 g l-1, 1.30 g l-1h-1 and 0.47 g g-1, respectively. When the continuous system was operated in a double-tubular packed-bed bioreactor with 50% bed volume, the average P, QP and YP/S were comparable to those of the repeated-batch fermentation. Under 6 g l-1 of yeast extract supplementation, the P, QP and YP/S markedly increased to 105.7 g l-1, 2.43 g l-1 h-1 and 0.52 g g-1, respectively at the dilution rate of 0.023 h-1. These results demonstrated that the unpeeled SSS pieces were successfully used as low-cost carriers for yeast cell immobilization to produce ethanol under both repeated-batch and continuous systems. |
| Keyword |
Cell immobilization, Continuous fermentation, Repeated-batch fermentation, Saccharomyces cerevisiae, Sweet sorghum stalk |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
true |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
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